public static IQueryable<Petshop.Data.Entities.LineItem> ByLineNum(this IQueryable<Petshop.Data.Entities.LineItem> queryable, System.Int32 lineNum, params System.Int32[] additionalValues)
        {
            var lineNumList = new List<System.Int32> { lineNum };

            if (additionalValues != null)
                lineNumList.AddRange(additionalValues);

            if (lineNumList.Count == 1)
                return queryable.ByLineNum(lineNumList[0]);

            return queryable.ByLineNum(lineNumList);
        }
        public static IQueryable<PetShop.Core.Data.OrderStatus> ByLineNum(this IQueryable<PetShop.Core.Data.OrderStatus> queryable, int lineNum, params int[] additionalValues)
        {
            var lineNumList = new List<int> { lineNum };

            if (additionalValues != null)
                lineNumList.AddRange(additionalValues);

            if (lineNumList.Count == 1)
                return queryable.ByLineNum(lineNumList[0]);

            return queryable.ByLineNum(lineNumList);
        }